Emerald Ash Borer (EAB) is a destructive non-native beetle that feeds under the bark of ash trees and eventually kills them.
Emerald Ash Borer was found in Boulder County in September 2013. It has not yet been detected in Jefferson County. Please notify your local pest authority if you find this insect.
Please visit the Colorado Department of Agriculture's website for more information.
The North Central IPM Center has published a guide to treatment options.